Machine for forming projectile shells.



R1]. WHELAN.

MACHINE FOR FORMING PROJECTILE SHELLS.-

APPLICATION FILED NOV-15. I916.

' Patented Mar. 6, 1917.

3 SHEETS-SHEET l.

R. I. WHELAN. I MACHINE FOR FORMING PROJECTILE SHELLS.

APPLICATION FILED NOV- I5.- I9I6- 1,218,143. Patented Mar. 6,1917.

3 SHEETS-SHEET 2.

G U k\ u a m Q S E w m a m M N W .fi M w E Q 7 9 w M Q m w Q ..L o II N R. J. WHELAN.

MA CHINE FOR FORMING PROJECTILE SHELLS. APPLICATION FILED NOV- 15. 1916.,

1,218,143. I Patented Maf. 6,1917. v

3 SHEETS SHEET 3- non.

RODERICK J. WHEIQAN, OF'ELYRIA, OHIO.

MACHINE FOR-FORIVIING "PROJECTILE SHELLS.

Specification of Letters Patent. Patented 131 6 191-;

Application filed November 15, 1915. .Serial No. 131,540.

of Ohio, have inventednew and useful Imv provements in Machines for Forming Projectile Shells, of which the following is a specification.-

This invention relates to amachine' for forming'projectile shells in which the nose is forged integral with the body of the shell, the machine comprising, generally a steam or power hammer between the dies of which the shell is fed by a carriage having means for gradually advancing it and means for rotating the shell to present all portions of its nose to the dies and render it uniformly smooth and solid. k a

In order to obtain the best results, it is important that the machine be so organized that the advancement of the shell as well as its rotation is under the control of one and the same operator, and itis the object of my invention to produce an efficient machine which afiords this advantage.

In the accompanying drawings: Figure 1 is a side elevation of the machine, partly in section. Fig. 2 is a sectional elevation, the sectional portion being on line 22, Fig. 4;. Fig. 3 is a horizontal section on line 3-3, Fig. 2. Fig. 4 is a transverse sectionon line 44, Fig. 1.

Similar characters of reference indicate corresponding parts throughout the several views. 1

1 indicates the base of a steam or power hammer of any ordinary or well-known construction, upon which is mounted the lower fixed die 2. Cooperating with this die is the customary upper die or hammer-head 3 carried by the plunger 4 which operates in the usual cylinder 4* of the hammer. These dies are properly shaped to produce the front or nose portion of the shell 5. The rear end of this shell is tightly clamped in a holder 0r chuck 6 of any suitable construction carried by a rotary spindle 7 journaled in a carriage 8. This carriage is movable toward and from the dies of the steam hammer and is guided on horizontal ways 9 mounted upon a pair of parallel longitudinal I-beams or equivalent fixed supports 10, these beams preferably'resting at their front ends upon the base 1 of the steam hammer and at their rear ends upon a suitable bed or standard 11.

Secured centrally to the underside of the is not illustratedin detail.

carriage 8 is a rack bar 12- with which meshes a plnion 13 secured to a transverse shaft 14: supported in bearings carried bythe I-beams 10. Mounted on one end of this shaftis' a large gear wheel 15 which meshes with a pinion 16 secured to a countershaft 17 also supported in said I-beams and provided at that side'of the machine at which the operatorstands'with' a hand wheel '18 for turnng it to advance or retract the carriage.

The chuck-spindle 7 is preferably rotated by a rotaryair or other suitable motor 19 through the medium of any appropriate transmission gearing. In the construction shown in the drawings, this motor is arranged centrally'and longitudinally above the chuck-spindle" and supported between the upper ends of a pair of standards 20 secured to the carriage 8 on opposite sides of the spindle. The rotary driving shaft 21 of the motor is provided at its rear end with a pinion 22 which'meshes with a gear wheel 23 secured to the rear-end of the spindle. As the motor is of ordinary construction, it It contains the customary rotor which is secured to the driving shaft 21'to rotate it and the chuckspindle geared thereto.

.24: indicates a pipe by which compressed air or. other pressure fluid is supplied to the motor, the passage of the fluid through this pipe being controlled by a valve 25 of any ordinary construction, having'a hand lever 26 for operating it. This lever maybe looked in position by a toothed segment 27 secured to the adjacent-standard 20, or "by any other suitable means. The operating lever of this valve is located at the same side of the machine as the hand Wheel 18 for operating the carriage 8 and in close proximity to said wheel, sothat the latter and thevalve can be conveniently manipulated by one and the same operator in order to obtain the desired'cooperation between the advancing and the rotary movements of the shell toproperly form itsnose. For this purpose, the valve lever is conveniently arranged a short distance above the hand wheel 18, as shown.

Preparatory to placing the shell in the machine, it is heated to a temperature suitable for forging in the customary manner. The carriage 8 is withdrawn to its initial position and the rear end of the shell is clamped in the chuck of the rotary spindle 7. The steam hammer being set in motion.

the carriage is advanced to bring the nose of the shell between the dies. As the forging operation progresses, the shell is gradually fed farther between the dies by turning the hand wheel 18 and simultaneously with this advancing movement the shell is rotated by admitting the pressure fluid to the motor 19. As the shell is fed forward, it is rotated at a gradually increased speed by opening the fluid-supply valve accordingly, this accelerated rotation of the shell being necessary in order to finish the nose smoothly and condense the metal uniformly on all sides.

While I have herein shown'and described an air motor for producing the rotary motion of the shell, any other suitable motive device, such as an electric motor, may be employed, if desired.

I claim as my invention:

1. In a machine of the character described, the combination of a pair of cooperating dies, a carriage movable toward and from said dies, a rotary spindle journaled in said carriage and carrying a shell-holder, means for feeding the carriage toward the dies, means for imparting rotary motion to said spindle, and independent controlling devices for said carriage-feeding means and said spindle-rotating means, both arranged in sufficiently close proximity to each other to be manipulated by one and the same operator.

:2. In a machine of the character described, the combination of a pair of coopcrating dies, a carriage movable toward and from said dies, a rotary spindle journaled in said carriage and carrying a shell-holder, means for feeding the carriage toward the dies, a rotary motor, gearing for transmittingrotary motion from said motor to said spindle, and separate controlling devices for said carriagefeeding means and said motor located in close proximity to each other.

3. In a machine of the character described, the combination of a. pair of cooperating dies, a carriage movable toward and from said dies, a rotary spindle journaled in said carriage and carrying a shellholder, means for feeding the carriage toward the dies, a rotary fluid motor, gearing for transmitting rotary motion from said motor to said spindle, a fluid supply pipe for said motor having a manual controlling valve, and manual controlling means for said carriage-feed mechanism, said valve and said controlling means being arranged in proximity to each other at the same side of the machine.

4. In a machine of the character described, the combination of a pair of co6pcrating dies, a carriage movable toward and from said dies, a rotary spindle j ournaled in said carriage and carrying a shell-holder, means for feeding the carriage toward the dies, a rotary motor mounted on said carriage above said spindle and having its driving shaft arranged lengthwise thereof, gearing connecting said shaft with said spindle, and means for controlling said motor.

5. In a machine of the character described, the combination of a power hammer including its stationary and movable dies, a horizontal carriage movable toward and from said dies, a rotary spindle journaled lengthwise in said carriage and provided at its front end with a shell-holder and at its rear end with a gear wheel, a rotary fluid-pressure motor arranged above said spindle and mounted on said carriage, the driving shaft of said motor having a pinion which meshes with the gear wheel of said spindle, a pressure supply-pipe leading to said motor and having a controlling valve, and means for feeding said carriage toward said dies, said means including a hand-wheel arranged at one side of the machine, said controlling valve being arranged at the same side of the machine as said hand wheel and in proximity thereto to be operated by one and the same operator.

RODERICK J. WHELAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

